<?php
/**
 * This file is part of DomAr.
 * 
 * DomAr is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * DomAr is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with DomAr.  If not, see <http://www.gnu.org/licenses/>.
 * 
 * @link http://inditel.ee/
 * @copyright 2007-2009 Inditel Meedia OÜ
 * @author Oliver Leisalu <oliver@inditel.ee>
 */

/**
* @package DomAr
* @subpackage Plugin
*/
class DomArProperty_DomArSlug extends DomArProperty_Char {
	
	private $fields;
	
	public function __construct( $name, array $fields = array() ) {
		parent::__construct( $name, 255, false, false, 'unique' );
		$this->fields = $fields;
	}

	public function generateSlug( DomArObject $object, $slugSource ) {
		
		$slug = DomInflector::urlize( $slugSource );
		$similar = DomSql::selectQuery('SELECT `'.$this->name.'` FROM '.$object->getDbTable().' WHERE `'.$this->name.'` LIKE \''.addslashes($slug).'%\'');
		$maxNr = 0;
		foreach( $similar as $sim ) {
			$nr = array_pop(explode( '-',$sim['slug'] ));
			if( $nr >= $maxNr ) {
				$maxNr = $nr+1;
			}
		}
		if( $maxNr > 0 )
			$slug .= '-'.$maxNr;

		return $slug;
	}
	
	public function updateSlug( DomArObject $object ) {
		$slugSource = '';
		foreach( $this->fields as $field )
			$slugSource .= ' '.$object->$field;
		
		$object->slug = $this->generateSlug( $object, $slugSource );
	}
}
?>